21954779

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{239}}^1\times {\mathrm{1193}}^1$

素因数の和:1450

約数の個数: 16

約数和(自身を含む): 27509760

約数和(自身を除く): 5554981

約数列:

[1, 7, 11, 77, 239, 1193, 1673, 2629, 8351, 13123, 18403, 91861, 285127, 1995889, 3136397, 21954779]

約数ペア:

[(1, 21954779), (7, 3136397), (11, 1995889), (77, 285127), (239, 91861), (1193, 18403), (1673, 13123), (2629, 8351)]